The Yaanadi (also spelt Yanadi, Yenadi, or Yenudis) are one of the principal Scheduled Tribes of Andhra Pradesh, concentrated across the districts of Nellore, Chittoor, Prakasam, Krishna, Guntur, and Kadapa. Their name - most scholars trace it to the Sanskrit *anadi*, meaning "those whose origin is not traceable", or, in a variant reading, from the Telugu *Andati*, meaning "aborigines." Either derivation signals a community understood, even by outsiders, to be among the oldest inhabitants of their landscape. Thurston, writing in 1909, noted that they were regarded as natives of Sriharikota Island and suggested the Sanskrit derivation. The 2011 Census recorded their population in Andhra Pradesh at approximately 5.33 lakh, making them the largest Scheduled Tribe in the state. The Yaanadi are not a uniform group. They are broadly divided into three endogamous sub-groups: the **Manchi Yanadi**, **Adavi Yanadi**, and **Challa Yanadi**, each with distinct livelihood traditions and geographic concentrations. Telugu speaking. Unlike deep interior forests like the Chenchu, more at forest margins where forest gives way to plain, scrub, coast, and agricultural land. The Yanadi's relationship with the Eastern Ghats landscape is intimate and ancient. Their subsistence has historically combined hunting, gathering, fishing, and seasonal agriculture. Even as many Yanadi have been pushed into wage labour and marginal occupations, their traditional ecological knowledge remains remarkable in its depth and specificity. Ethnobotanical studies in the Penchalakona forest of Nellore District document the use of around twenty plant species for treating a wide range of conditions from snakebite and scorpion stings to fever, dysentery, and heart ailments. Specialist knowledge of snakebite cures is particularly noted across the literature. A 2021 study published in *Ecology and Society* by Paul and Jones examined the Yanadi of Chittoor District in the context of what researchers call "cultural ecosystem services": the non-material benefits, rooted in identity and practice, that communities derive from their relationship with the natural world. The study found that the forests of the Eastern Ghats had been as much shaped by the Yanadi as the Yaanadi had been shaped by the forests. In other words, the landscape we observe is, in part, a product of their long presence. The study also documented how, since the 1970s, the Indian Forest Department's exclusion of Yanadi communities from forest management decisions has systematically eroded this knowledge and deepened their marginalisation. A particularly telling episode in the history of Yanadi displacement: in 1970-71, the entire population of Sriharikota Island including the Yanadi who had lived there for generations were evicted to make way for India's primary space rocket launching facility, ISRO's Satish Dhawan Space Centre. This displacement, almost entirely absent from national consciousness, is an instructive case of how Adivasi land loss can be rendered invisible when it serves a "national" purpose. ## The Jerdon Connection connecting the Yaanadi to a wider history of knowledge and knowledge extraction runs through the work of Thomas C. Jerdon, the British army surgeon and naturalist who became one of the foundational figures of Indian ornithology in the nineteenth century. Jerdon arrived in India in 1835 as an assistant surgeon with the Madras Medical Service. His postings took him across the Eastern Ghats and southern peninsula, where he documented birds and plants alongside his medical duties. Shashank Dalvi, in his book *The Search for India's Rarest Birds* (2023), reconstructs Jerdon's movements and encounters in illuminating detail. Drawing on a contemporary account by another naturalist, Elliot, Dalvi notes that Jerdon's army postings gave him access to parts of the country that were "difficult to access and rarely visited." He was eventually appointed Civil Surgeon of Nellore, a posting that brought him to the plains along the eastern coast, looking westward toward the Ghats. It is here that the Yanadi enter this history directly. Dalvi cites a passage from Jerdon's own memoir describing the country between Madras and Nellore as home to the Yanadi, whom Jerdon characterised as a > "remarkable aboriginal tribe, of semi-nomad habits, subsisting on the spontaneous produce of the jungles." What matters most in this account, however, is what Jerdon acknowledges immediately after: that the Yaanadi, possessing > "a minute acquaintance with the forms of animal and vegetable life around them," were instrumental in his discoveries. As Dalvi records it, through their guidance "Dr Jerdon discovered many new species." Among these species was the bird now known as Jerdon's Courser (*Rhinoptilus bitorquatus*), first described around 1848. The Yanadi of Nellore, with whom Jerdon had evidently cultivated a working relationship during his time as Civil Surgeon, guided him to it. The bird is nocturnal, elusive, haunting the rocky scrub-forest edge of the Eastern Ghats. The Courser was subsequently lost to science for over eighty years, considered extinct until its dramatic rediscovery in 1986 by ornithologist Bharat Bhushan. The last photographic records are from 2008; it has not been reliably confirmed since....until its rediscovery (again!) [in 2025](https://www.birdlife.org/news/2025/09/10/glimmer-of-hope-sought-after-lost-bird-rediscovered-in-india/) The Courser's story and the Yanadi's story are intertwined in ways that standard ornithological history does not fully reckon with. The bird bears Jerdon's name; the knowledge that led to its description was Yanadi knowledge. ## Contemporary Situation The Yaanadi today face conditions of deep poverty and social exclusion, with limited access to education, healthcare, and land rights. The 2011 Census recorded a literacy rate of only 35.35% among the community. Many Yanadi in Chittoor District have been barred from entering nearby forests on the pretext of preventing timber smuggling: a prohibition that severs them from resources and knowledge-practices central to their lives. ## Key References - Paul, D., and S. Jones. 2021. "Conservation and indigenous cultures: learning from the Yanadi community in the Eastern Ghats, India." *Ecology and Society* 26(4):42. https://doi.org/10.5751/ES-12779-260442 - Thurston, Edgar. 1909. *Castes and Tribes of Southern India*. Cosmos Publications, Delhi (reprinted 1975). - Dalvi, Shashank. 2023. *The Search for India's Rarest Birds*. [p. 38, on Jerdon's encounters with the Yaanadi of Nellore and the discovery of new species through their knowledge.] - Suresh, M. 2022. "Cultural Communication of Yanadi Tribe: A Study in Andhra Pradesh." ResearchGate. https://doi.org/10.13140/RG.2.2.xxx - Peaceful Societies profile, UNC Greensboro: https://peacefulsocieties.uncg.edu/societies/yanadi/ - India Bird Watching, "Jerdon and Tickells": https://www.indiabirdwatching.com/jerdon-and-tickells/ - NCF India, Jerdon's Courser Recovery Programme: https://www.ncf-india.org/endangered-birds/saving-the-endangered-jerdons-courser